GPU development may have started that way... but lets all be honest with ourselves. For companies like Nvidia... they have moved their development more and more toward other markets. They don't even like using the term GPU much anymore.
We have never said if you love windows games you should stop running Windows.
What most of us have been suggesting is you should think about dual booting. (to which some windows people) have replied that they won't bother because it takes work.
As someone who has dual booted Linux/Windows numerous times, it indeed becomes a drag the longer you do and when it fully dons on you that Windows does 100% of what you need and Linux does only 50% or less, it ends poorly for Linux.
Perhaps what I will do to inject something a bit different into this argument back and forth is list the ADVANTAGES to dual booting Linux and Windows. (As I and many other Linux boosters do)
1) Use Windows ONLY for things that are not critical to me. Yes my documents and other important WORK is on my Linux drive... a drive which is running a more advanced file system where files are far less likely to get corrupted or lost in an OS crash. I am also running a much more secure OS for anything important to me... no virus issues, no real worries about malware or anything else. My Linux system is secure, that may not matter to everyone. Still it can't be argued really.
2) Because my Windows drive ONLY plays a handful of games... my Windows runs faster for longer. Yes Windows uses the terrible NTFS which still requires a regular defrag regiment.... and it uses the Windows system which tends to bloat its own registry and in general slows down the more you install.
3) I never have to worry about a forced update barging in on me while I'm doing anything important.
4) Because my windows is a games only drive... I can run a nice lean stripped down windows tailored for my games and games alone.
5) I run my windows copy on its own Drive and I have OS redundancy... well ok no Linux has never ever ever died on me but previous copies of windows have. Granted you could always boot from a USB to recover things from a drive that isn't 100% dead... still if a drive does 100% fail your system still has a booting OS. (when I decided to kill my Win 10 drive and reinstall Win7... I copied a handful of files from Win 10 to my Linux drive from Linux... one hell of a lot easier and faster then messing around copying things to backups. Linux has no issues reading and writing NTFS)
6) I tend to waste less time with a few time wasting (online) games... as I will simply decide to not reboot when I should be working. (OK I am half joking don't jump on this heatle... I'm giving you ammo lol)
This certainly can be argued, because it sounds like you are talking about Windows XP. I clean installed Windows 7 about 7 years ago. I am still running on that original install, that gets heavy daily use (it's my only home computer). Gaming/Internet/Video processing. Usually, my machine runs 24/7 for much of those 7 years. I install all kinds of crap. I run defrag manually (and haven't run it months). I haven't seen any slowdowns, and never had a Virus.
Windows 7 is the most solid OS I have ever used (and yes that includes Linux).
So that list is mostly a bunch of outdated FUD.
Only #3 is a legitimate gripe for Windows 10, and since I don't use it, I can't comment, but Heatless can probably comment if you can exclusion times at least blocking updates during critical times. If that doesn't exist now, I imagine it will in the future.
IMO there is no reason not to run both at this point.
Linux does so many things better, where it lacks and no one really denies it is console port game support. (again freaking joking... seriously for some game types that aren't simply on PS4 like Online MMOs Windows is still better) So in my case when I am playing games I'm likely in LInux 80% of the time... but for some specific games (in my case mostly Online games where I PvP ect I boot into my stripped down game running Win 7 drive). I mean what is the argument against... that it is a pain in the butt ? Who is that important that they can't shut down Linux (5s in my case) and Restart Windows (30s or so).
You really haven't given any real reason to run both. Just Windows XP FUD why we shouldn't run Windows.
And for the what must be the 10th time. The Windows Advantage is Not just Games. Its Applications software, It's multimedia Software, It's proprietary software support for gadgets like GPS, Its TV recording from Cable cards, etc...
It's everything that computers do.
Just because you don't do any of those things, doesn't mean the rest of us don't.